Herring Gull (argentatus & argenteus)

(last update: February 11, 2013)

Herring Gull 4CY, February 21 2014, Katwijk, the Netherlands.

3rd gen flight feathers: adult-like inner and central primaries, mirror on P9 and P10. Secondaries grey with white tips.

Some black in tail. Brown markings on many coverts.